The royalty free music track used in this video is called
Sacrificed
by Crypt of Insomnia
Check this composer's entire catalog here...
Crypt of Insomnia
Free war sound effects and free battle sound effects like guns, cannons, tanks, grenades, battle ambience, etc for free download. Free sound effects on this do not include a royalty free license. made available for personal non-commercial projects. These sounds do not come with a license for commercial use. If you have a commercial and professional project it would be wise to license professional sound effects.
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Over 10,000 free sound effects available for personal and educational projects
Over 100,000 hi quality sound effects that come with a license for commercial use